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hyperv: Resurrect r297481

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This time we make sure that the TIME_REF_COUNT MSR exists.

Submitted by:	Jun Su <junsu microsoft com>
Reviewed by:	sephe, Dexuan Cui <decui microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft OSTC
This commit is contained in:
Sepherosa Ziehau 2016-04-11 03:36:07 +00:00
parent 68247c05c2
commit c8d7fb6a5c
1 changed files with 5 additions and 2 deletions
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7
sys/dev/hyperv/vmbus/hv_hv.c
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@ -167,8 +167,6 @@ hv_vmbus_init(void)
hv_vmbus_g_context.hypercall_page = virt_addr;
tc_init(&hv_timecounter); /* register virtual timecount */
hv_et_init();
return (0);
@ -480,5 +478,10 @@ hyperv_init(void *dummy __unused)
{
if (!hyperv_identify())
return;
if (hyperv_features & HV_FEATURE_MSR_TIME_REFCNT) {
/* Register virtual timecount */
tc_init(&hv_timecounter);
}
}
SYSINIT(hyperv_initialize, SI_SUB_HYPERVISOR, SI_ORDER_FIRST, hyperv_init, NULL);